VM: Move calling convention-dependent code out of cc tests.

runtime/vm/assembler_arm64.h

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_ASSEMBLER_ARM64_H_
 #define VM_ASSEMBLER_ARM64_H_
 
 #ifndef VM_ASSEMBLER_H_
 #error Do not include assembler_arm64.h directly; use assembler.h instead.
 #endif
@@ skipping 1344 matching lines @@
 
   // When entering Dart code from C++, we copy the system stack pointer (CSP)
   // to the Dart stack pointer (SP), and reserve a little space for the stack
   // to grow.
   void SetupDartSP(intptr_t reserved_space) {
     ASSERT(Utils::IsAligned(reserved_space, 16));
     mov(SP, CSP);
     sub(CSP, CSP, Operand(reserved_space));
   }
 
-  void EnterDartFrame(intptr_t frame_size);
-  void EnterDartFrameWithInfo(intptr_t frame_size, Register new_pp);
+  void EnterDartFrame(intptr_t frame_size, Register new_pp = kNoRegister);
   void EnterOsrFrame(intptr_t extra_size, Register new_pp);
   void LeaveDartFrame();
 
   void EnterCallRuntimeFrame(intptr_t frame_size);
   void LeaveCallRuntimeFrame();
   void CallRuntime(const RuntimeEntry& entry, intptr_t argument_count);
 
   // Set up a stub frame so that the stack traversal code can easily identify
   // a stub frame.
   void EnterStubFrame();
@@ skipping 566 matching lines @@
                                   Register value,
                                   Label* no_update);
 
   DISALLOW_ALLOCATION();
   DISALLOW_COPY_AND_ASSIGN(Assembler);
 };
 
 }  // namespace dart
 
 #endif  // VM_ASSEMBLER_ARM64_H_